Public bug reported:

With regard to github bug :

---
adjust timezone to the host at creation time #47
https://github.com/lxc/lxc/issues/47
---

I still can reproduce the problem on different HW running Xenial with
the LXC ubuntu image Trusty and Xenial.

* Bare metal (xenial)
$ date
Wed Oct 12 11:27:55 EDT 2016

LXC (Trusty)
$ sudo lxc-attach -n trusty
root@trusty:/# date
Wed Oct 12 15:28:10 UTC 2016

* Bare metal #2 (xenial)
$ date
Wed Oct 12 11:28:57 EDT 2016

LXC (Xenial)
$ lxc-attach -n xenial

$ date
Wed Oct 12 15:29:32 UTC 2016

Note, that using the debian template everything works fine :

Bare metal #1 (xenial)
$ date
Wed Oct 12 11:30:40 EDT 2016

$ lxc-attach -n debian8
$ date
Wed Oct 12 11:30:45 EDT 2016

However debian and ubuntu got the same piece of code :

# lxc-debian.in
149     # set initial timezone as on host
150     if [ -f /etc/timezone ]; then
151         cat /etc/timezone > "$rootfs/etc/timezone"
152         chroot "$rootfs" dpkg-reconfigure -f noninteractive tzdata
153     elif [ -f /etc/sysconfig/clock ]; then
154         . /etc/sysconfig/clock
155         echo "$ZONE" > "$rootfs/etc/timezone"
156         chroot "$rootfs" dpkg-reconfigure -f noninteractive tzdata
157     else
158         echo "Timezone in container is not configured. Adjust it manually."
159     fi
160
161     echo "root:root" | chroot "$rootfs" chpasswd
162     echo "Root password is 'root', please change !"
163
164     return 0
165 }

# lxc-ubuntu.in
600     # Set initial timezone as on host
601     if [ -f /etc/timezone ]; then
602         cat /etc/timezone > $rootfs/etc/timezone
603         chroot $rootfs dpkg-reconfigure -f noninteractive tzdata
604     elif [ -f /etc/sysconfig/clock ]; then
605         . /etc/sysconfig/clock
606         echo $ZONE > $rootfs/etc/timezone
607         chroot $rootfs dpkg-reconfigure -f noninteractive tzdata
608     else
609         echo "Timezone in container is not configured. Adjust it manually."
610     fi

If I run the above manually it has positive effect on Trusty (persistent across 
stop/start)
$ cat /etc/timezone > /var/lib/lxc/trusty/rootfs/etc/timezone
$ chroot /var/lib/lxc/trusty/rootfs dpkg-reconfigure -f noninteractive tzdata

Current default time zone: 'America/Toronto'
Local time is now:      Wed Oct 12 11:35:37 EDT 2016.
Universal Time is now:  Wed Oct 12 15:35:37 UTC 2016.

$ lxc-attach -n trusty
$ date
Wed Oct 12 11:36:02 EDT 2016

But got no effect on Xenial LXC container :

$ cat /etc/timezone > /var/lib/lxc/xenial/rootfs/etc/timezone
$ chroot /var/lib/lxc/xenial/rootfs dpkg-reconfigure -f noninteractive tzdata

Current default time zone: 'Etc/UTC'
Local time is now:      Wed Oct 12 15:38:00 UTC 2016.
Universal Time is now:  Wed Oct 12 15:38:00 UTC 2016.

# lxc-attach -n xenial
$ date
Wed Oct 12 15:38:06 UTC 2016

** Affects: lxc (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  With regard to github bug :
  
  ---
  adjust timezone to the host at creation time #47
  https://github.com/lxc/lxc/issues/47
  ---
  
  I still can reproduce the problem on different HW running Xenial with
- the LXC ubuntu image Trusty.
+ the LXC ubuntu image Trusty and Xenial.
  
  * Bare metal (xenial)
  $ date
  Wed Oct 12 11:27:55 EDT 2016
  
  LXC (Trusty)
  $ sudo lxc-attach -n trusty
  root@trusty:/# date
  Wed Oct 12 15:28:10 UTC 2016
  
  * Bare metal #2 (xenial)
  $ date
  Wed Oct 12 11:28:57 EDT 2016
  
  LXC (Xenial)
  $ lxc-attach -n xenial
  
  $ date
  Wed Oct 12 15:29:32 UTC 2016
  
  Note, that using the debian template everything works fine :
  
  Bare metal #1 (xenial)
  $ date
  Wed Oct 12 11:30:40 EDT 2016
  
  $ lxc-attach -n debian8
  $ date
  Wed Oct 12 11:30:45 EDT 2016
  
  However debian and ubuntu got the same piece of code :
  
  # lxc-debian.in
  149     # set initial timezone as on host
  150     if [ -f /etc/timezone ]; then
  151         cat /etc/timezone > "$rootfs/etc/timezone"
  152         chroot "$rootfs" dpkg-reconfigure -f noninteractive tzdata
  153     elif [ -f /etc/sysconfig/clock ]; then
  154         . /etc/sysconfig/clock
  155         echo "$ZONE" > "$rootfs/etc/timezone"
  156         chroot "$rootfs" dpkg-reconfigure -f noninteractive tzdata
  157     else
  158         echo "Timezone in container is not configured. Adjust it 
manually."
  159     fi
- 160 
+ 160
  161     echo "root:root" | chroot "$rootfs" chpasswd
  162     echo "Root password is 'root', please change !"
- 163 
+ 163
  164     return 0
  165 }
- 
  
  # lxc-ubuntu.in
  600     # Set initial timezone as on host
  601     if [ -f /etc/timezone ]; then
  602         cat /etc/timezone > $rootfs/etc/timezone
  603         chroot $rootfs dpkg-reconfigure -f noninteractive tzdata
  604     elif [ -f /etc/sysconfig/clock ]; then
  605         . /etc/sysconfig/clock
  606         echo $ZONE > $rootfs/etc/timezone
  607         chroot $rootfs dpkg-reconfigure -f noninteractive tzdata
  608     else
  609         echo "Timezone in container is not configured. Adjust it 
manually."
  610     fi
  
- 
  If I run the above manually it has positive effect on Trusty (persistent 
across stop/start)
- $ cat /etc/timezone > /var/lib/lxc/trusty/rootfs/etc/timezone 
+ $ cat /etc/timezone > /var/lib/lxc/trusty/rootfs/etc/timezone
  $ chroot /var/lib/lxc/trusty/rootfs dpkg-reconfigure -f noninteractive tzdata
  
  Current default time zone: 'America/Toronto'
  Local time is now:      Wed Oct 12 11:35:37 EDT 2016.
  Universal Time is now:  Wed Oct 12 15:35:37 UTC 2016.
  
  $ lxc-attach -n trusty
  $ date
  Wed Oct 12 11:36:02 EDT 2016
  
  But got no effect on Xenial LXC container :
  
  $ cat /etc/timezone > /var/lib/lxc/xenial/rootfs/etc/timezone
  $ chroot /var/lib/lxc/xenial/rootfs dpkg-reconfigure -f noninteractive tzdata
  
  Current default time zone: 'Etc/UTC'
  Local time is now:      Wed Oct 12 15:38:00 UTC 2016.
  Universal Time is now:  Wed Oct 12 15:38:00 UTC 2016.
  
  # lxc-attach -n xenial
  root@landscape:~# date
  Wed Oct 12 15:38:06 UTC 2016

** Description changed:

  With regard to github bug :
  
  ---
  adjust timezone to the host at creation time #47
  https://github.com/lxc/lxc/issues/47
  ---
  
  I still can reproduce the problem on different HW running Xenial with
  the LXC ubuntu image Trusty and Xenial.
  
  * Bare metal (xenial)
  $ date
  Wed Oct 12 11:27:55 EDT 2016
  
  LXC (Trusty)
  $ sudo lxc-attach -n trusty
  root@trusty:/# date
  Wed Oct 12 15:28:10 UTC 2016
  
  * Bare metal #2 (xenial)
  $ date
  Wed Oct 12 11:28:57 EDT 2016
  
  LXC (Xenial)
  $ lxc-attach -n xenial
  
  $ date
  Wed Oct 12 15:29:32 UTC 2016
  
  Note, that using the debian template everything works fine :
  
  Bare metal #1 (xenial)
  $ date
  Wed Oct 12 11:30:40 EDT 2016
  
  $ lxc-attach -n debian8
  $ date
  Wed Oct 12 11:30:45 EDT 2016
  
  However debian and ubuntu got the same piece of code :
  
  # lxc-debian.in
  149     # set initial timezone as on host
  150     if [ -f /etc/timezone ]; then
  151         cat /etc/timezone > "$rootfs/etc/timezone"
  152         chroot "$rootfs" dpkg-reconfigure -f noninteractive tzdata
  153     elif [ -f /etc/sysconfig/clock ]; then
  154         . /etc/sysconfig/clock
  155         echo "$ZONE" > "$rootfs/etc/timezone"
  156         chroot "$rootfs" dpkg-reconfigure -f noninteractive tzdata
  157     else
  158         echo "Timezone in container is not configured. Adjust it 
manually."
  159     fi
  160
  161     echo "root:root" | chroot "$rootfs" chpasswd
  162     echo "Root password is 'root', please change !"
  163
  164     return 0
  165 }
  
  # lxc-ubuntu.in
  600     # Set initial timezone as on host
  601     if [ -f /etc/timezone ]; then
  602         cat /etc/timezone > $rootfs/etc/timezone
  603         chroot $rootfs dpkg-reconfigure -f noninteractive tzdata
  604     elif [ -f /etc/sysconfig/clock ]; then
  605         . /etc/sysconfig/clock
  606         echo $ZONE > $rootfs/etc/timezone
  607         chroot $rootfs dpkg-reconfigure -f noninteractive tzdata
  608     else
  609         echo "Timezone in container is not configured. Adjust it 
manually."
  610     fi
  
  If I run the above manually it has positive effect on Trusty (persistent 
across stop/start)
  $ cat /etc/timezone > /var/lib/lxc/trusty/rootfs/etc/timezone
  $ chroot /var/lib/lxc/trusty/rootfs dpkg-reconfigure -f noninteractive tzdata
  
  Current default time zone: 'America/Toronto'
  Local time is now:      Wed Oct 12 11:35:37 EDT 2016.
  Universal Time is now:  Wed Oct 12 15:35:37 UTC 2016.
  
  $ lxc-attach -n trusty
  $ date
  Wed Oct 12 11:36:02 EDT 2016
  
  But got no effect on Xenial LXC container :
  
  $ cat /etc/timezone > /var/lib/lxc/xenial/rootfs/etc/timezone
  $ chroot /var/lib/lxc/xenial/rootfs dpkg-reconfigure -f noninteractive tzdata
  
  Current default time zone: 'Etc/UTC'
  Local time is now:      Wed Oct 12 15:38:00 UTC 2016.
  Universal Time is now:  Wed Oct 12 15:38:00 UTC 2016.
  
  # lxc-attach -n xenial
- root@landscape:~# date
+ $ date
  Wed Oct 12 15:38:06 UTC 2016

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https://bugs.launchpad.net/bugs/1632766

Title:
  time in lxc ubuntu template

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